The prophet descends into a local craftsman's workshop to observe a master at work. He watches closely as the potter actively shapes and processes the raw clay in his hands [מצודת דוד]. The craftsman performs his labor at a dedicated station, utilizing a specific tool designed for his trade. The primary approach among commentators is that this equipment consists of a round stone surface that spins, allowing the artisan to mold the clay vessel as it turns [ביאור שטיינזלץ]. In the ancient Aramaic translation, this workstation is identified as a craftsman's block [רש״י, רד״ק].
Interestingly, this spinning stone wheel shares a unique connection with the beginnings of human life. Elsewhere in the Bible, the identical term is used to describe a birthstool, the special seat used by women during childbirth [מצודת ציון].